What is the purpose of the OSPF hello packet？（）A、 advertises reachable networksB、 acknowledges the receipt of update packetsC、 establishes and maintains neighbor relationshipsD、 describes the contents of the link-state database
What is the purpose of the OSPF hello packet？（）
- A、 advertises reachable networks
- B、 acknowledges the receipt of update packets
- C、 establishes and maintains neighbor relationships
- D、 describes the contents of the link-state database
相关考题：
What is the purpose of the RSVP hello interval?() A. It is the size of the RSVP hello packetB. It is how long it maintains RSVP neighborsC. It is the length of time between RSVP hello packetsD. It is how long the router waits before declaring a router to be down
What is the purpose of unicast reverse path forwarding?() A. to validate packet receipt on interfaces where the traffic should be receivedB. to forward packets out the interfaces where the traffic should be receivedC. to forward packets out the interfaces where the traffic should be sentD. to validate packet receipt on interfaces where the traffic should be sent
What is the purpose of the OSPF link－state update packet?() A. describes a change to the OSPF hello timerB. carries one or more link-state advertisementsC. establishes and maintains neighbor relationshipsD. describes the contents of the entire link-state database
Which three are benefits of IS － IS over OSPF?() A. supports route tagsB. supports more routers in an areaC. does not require Hello packets to establish neighbor relationshipsD. produces fewer link state advertisements for a given networkE. supports network layer protocols other than IPF. requires fewer neighbor relationships in a broadcast multiaccess network
What is the purpose of the OSPF router ID in a OR／BOR election?() A. It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point networkB. It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF routerC. It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access networkD. It is used to determine which interfaces will send Hello packets to neighboring OSPF routers
Which three statements about the EIGRP routing protocol are true?() A. EIGRP supports five generic packet types, including hello, database description (DBD), link state request (LSR), link - state update (LSU), and LSAck.B. EIGRP sends periodic hello packets to the multicast IP address 224.0.0.10.C. EIGRP will not form a neighbor relationship with another peer when their K values are mismatched.D. EIGRP sends periodic hello packets to the multicast IP address 224.0.0.9.E. E IGRP will form a neighbor relationship with another peer even when their K values are mismatched.F. EIGRP supports five generic packet types, including hello, update, query, reply, and ACK packets.
The OSPF hello protocol performs which of the following tasks?() A. It provides dynamic neighbor discoveryB. It detects unreachable neighbors in 90 second intervalsC. It maintains neighbor relationshipsD. It negotiates correctness parameters between neighboring interfacesE. It uses timers to elect the router witch the fastest links as the designated routerF. It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF
The OSPF Hello protocol performs which of the following tasks (Choose two.)()。 A.It provides dynamic neighbor discovery.B.It detects unreachable neighbors in 90 second intervals.C.It maintains neighbor relationships.D.It negotiates correctness parameters between neighboring interfaces.E.Ituses timers to elect the router with the fastest links as the designated router.F.It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF.
OSPF选举DR、BDR时会使用如下的那些报文？（）。A、HELLO报文（Hello Packet）B、DD报文（Database Description Packet）C、LSR报文（Link State Request Packet）D、LSU报文（Link State Update Packet）
Which three are benefits of IS - IS over OSPF?（）A、supports route tagsB、supports more routers in an areaC、does not require Hello packets to establish neighbor relationshipsD、produces fewer link state advertisements for a given networkE、supports network layer protocols other than IPF、requires fewer neighbor relationships in a broadcast multiaccess network
What kind of packets does OSPF send to keep up connectivity with its neighboring routers?（）A、SPF packetsB、hello packetsC、keepalive packetsD、dead interval packetsE、LSU packets
The OSPF hello protocol performs which of the following tasks?（）A、It provides dynamic neighbor discoveryB、It detects unreachable neighbors in 90 second intervalsC、It maintains neighbor relationshipsD、It negotiates correctness parameters between neighboring interfacesE、It uses timers to elect the router witch the fastest links as the designated routerF、It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF
What is the purpose of the RSVP hello interval?（）A、It is the size of the RSVP hello packetB、It is how long it maintains RSVP neighborsC、It is the length of time between RSVP hello packetsD、It is how long the router waits before declaring a router to be down
下列那些OSPF报文中会出现完整的LSA信息？（）A、HELLO报文（Hello Packet）B、DD报文（Database Description Packet）C、LSR报文（LinkState Request Packet）D、LSU报文（LinkState Update Packet）E、LSAck报文（LinkState Acknowledgmen Packet）
OSPF选举DR、BDR时会使用如下的那些报文？（）A、HELLO报文（Hello Packet）B、DD报文（Database Description Packet）C、LSR报文（LinkState Request Packet）D、LSU报文（LinkState Update Packet）E、LSAck报文（LinkState Acknowledgmen Packet）
如果OSPF链路故障，哪个包广播网络的变化（）A、Link-state advertisementB、Database DescriptionC、Link-state requestD、Link-state update
What is the purpose of the OSPF router ID in a OR/BOR election?（）A、It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point networkB、It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF routerC、It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access networkD、It is used to determine which interfaces will send Hello packets to neighboring OSPF routers
What are two Cisco IOS commands that can be used to view neighbor adjacencies?（）A、show ip ospf interfacesB、show ip ospf protocolsC、show ip ospf neighborsD、show ip ospf database
下列（）OSPF报文中会出现完整的LSA信息。A、HELLO报文（Hello Packet）B、DD报文（Database DescRIPtion Packet）C、LSR报文（Link State Request Packet）D、LSU报文（LinkState Update Packet）
What is the purpose of unicast reverse path forwarding?（）A、to validate packet receipt on interfaces where the traffic should be receivedB、to forward packets out the interfaces where the traffic should be receivedC、to forward packets out the interfaces where the traffic should be sentD、to validate packet receipt on interfaces where the traffic should be sent
What is the purpose of the OSPF link-state update packet?（）A、describes a change to the OSPF hello timerB、carries one or more link-state advertisementsC、establishes and maintains neighbor relationshipsD、describes the contents of the entire link-state database
多选题The OSPF Hello protocol performs which of the following tasks (Choose two.)（）。AIt provides dynamic neighbor discovery.BIt detects unreachable neighbors in 90 second intervals.CIt maintains neighbor relationships.DIt negotiates correctness parameters between neighboring interfaces.EItuses timers to elect the router with the fastest links as the designated router.FIt broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF.
多选题The OSPF hello protocol performs which of the following tasks?（）AIt provides dynamic neighbor discoveryBIt detects unreachable neighbors in 90 second intervalsCIt maintains neighbor relationshipsDIt negotiates correctness parameters between neighboring interfacesEIt uses timers to elect the router witch the fastest links as the designated routerFIt broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF
单选题What is the purpose of the OSPF hello packet？（）A advertises reachable networksB acknowledges the receipt of update packetsC establishes and maintains neighbor relationshipsD describes the contents of the link-state database
单选题OSPF选举DR、BDR时会使用如下的那些报文？（）。AHELLO报文（Hello Packet）BDD报文（Database Description Packet）CLSR报文（Link State Request Packet）DLSU报文（Link State Update Packet）
单选题What is the purpose of the OSPF link-state update packet?（）Adescribes a change to the OSPF hello timerBcarries one or more link-state advertisementsCestablishes and maintains neighbor relationshipsDdescribes the contents of the entire link-state database